so my old battery in my '94 dakota would go dead just from being in the cold of winter. It worked fine in the warm months.
Today i got a new battery, put it in, hooked it up, turned the key, and it almost started. So i thought to myself “ok, this battery must have been on the shelf for a while” and i put my portable jumper to it and it started.
Then the problem began. I turned the truck off, then tried to start it again. The battery gauge in the car went from fine all the way down to nothing while cranking. Charged the battery thinking it was that, turned the key, and the same thing happened.
I need help!